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| Item | Specifications | Results |
| Appearance | White crystalline powder | White crystalline powder |
| Assay | 99.0～101.0% | 99.9% |
| Specific rotation | +22.4°～+24.8° | +23.7° |
| pH | 5.6～6.1 | 5.9 |
| Residue on ignition | ≤0.40% | 0.13% |
| Chloride (CL) | ≤0.05% | 0.018% |
| Loss on drying | ≤0.30% | 0.25% |
| Sulfate(SO4) | ≤0.03% | 0.015% |
| Iron,(Fe) | ≤30ppm | 7ppm |
| Heavy metals ,(Pb) | ≤15ppm | 6ppm |
| Organic volatile impurities | Meets the requirements | Conform |
| Identification | Infrared absorption | Conform |
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